The current edition of the Statistical Yearbook of Wielkopolskie Voivodship is the twentieth publication in this series, providing a statistical description of the voivodship in its current administrative division in effect since 1999. The yearbook offers a summary of survey results and changes observed in different areas of social life and the economy in 2018. Like in the earlier editions, the latest results are compared with data for previous years. This adds a dynamic character to the picture of the voivodship created by the figures and enables the reader to track basic development trends.

The beginnings of the Statistical Yearbook of Poznań go back to the 1920s. The series, which was interrupted by the outbreak of the Second World War, was resumed only in 1960. In the following decades, the Yearbook appeared with varying frequency. Since 1999, it has been published in a two-year cycle. Each edition provides an up-to-date picture of the city, described in the terms of indicators and figures that characterise social, demographic and economic phenomena taking place in the capital of Wielkopolskie Voivodship.